Frontier Airlines, a U.S. ultra low-cost carrier, generally requires passengers to pay for any carry-on bag that fits in the overhead bin; personal items that fit under the seat are typically free. The carrier offers several ways to avoid or reduce the fee, including purchasing a CarryOn™ ticket at checkout, joining the Boundless loyalty program, or holding elite status through partners. This guide explains the current rules, bag definitions, exceptions, and practical steps travelers can take to confirm and manage bag policies for their specific itinerary.
Frontier Carry-On Fee Overview
Frontier’s published fare rules state that any carry-on bag you want to stow in the overhead bin costs a fee at booking or at the gate. Personal items that remain under your seat do not incur a charge. The airline seats cabin bags in the bin only when space permits; if the bin fills, passengers with paid bags may be required to check their bag at the gate. Fees vary by route and time of booking, and exemptions can apply for eligible passengers.
Bag Categories and Definitions
Frontier defines two main categories for cabin items:
- Personal item: A smaller bag that must fit entirely under the seat in front of you. Examples include a purse, laptop sleeve, or small backpack.
- Carry-on (Cabin bag): A larger bag that you intend to store in the overhead bin above your seat.
Only your personal item is included for free on all fare types. If you want your cabin bag in the overhead, you must comply with Frontier’s paid carry-on policy.
How to Avoid or Reduce Carry-On Fees
You can avoid or lower the carry-on fee by choosing the right fare, status, or program enrollment. The most direct method is selecting a ticket that includes a cabin bag at checkout. Other approaches rely on loyalty status or programs that provide bag allowances. Review your booking summary and the airline’s receipt to confirm exactly what is included.
Ways to Get a Free Carry-On
- Purchase a CarryOn™ ticket at booking, which includes one checked bag and one cabin bag.
- Fly Boundless: Join Frontier’s loyalty program and reach tiers that provide cabin bag allowances.
- Elite status with Star Alliance or other partner programs that recognize Frontier baggage concessions.
- Certain military fares and government itineraries may include bag benefits; verify with your booking.
Published Fee Structure and Conditions
Frontier charges a separate fee for each cabin bag that goes in the overhead bin. Fees are typically higher at the gate compared to online booking. If the airline determines a bag does not meet size or safety rules, it may require checking the bag at the gate, sometimes with an additional fee. Fees and rules are subject to change, so it is best to verify on the specific reservation.
Verifiable Policy Snapshot
| Item | Verified Detail | Source Type |
|---|---|---|
| Personal item (under seat) | No charge on all fares | Frontier published policy |
| Overhead cabin bag | Fee required; varies by fare and route | Frontier fare rules and booking flow |
| CarryOn™ ticket | Includes cabin bag and checked bag | Frontier product documentation |
| Boundless membership | Provides cabin bag allowances at certain tiers | Frontier loyalty program terms |
| Gate check policy | May apply if bin capacity is full; fees may apply | Frontier operations guidance |
Booking and Fare Selection Tips
When you book, review the baggage summary before payment and use the calendar to compare prices for fares that include bags if you travel with a cabin item. Selecting the base fare without bag benefits may appear cheaper initially, but adding a cabin bag later can increase the total cost. If you frequently travel with only a personal item, you can typically avoid fees by never checking a bag and keeping your cabin item compliant with size limits.
At the Airport and Gate Procedures
At check-in or the gate, Frontier agents verify bag labels and dimensions. If the overhead bin space is full, passengers with paid cabin bags may be directed to check their bag at the gate. Gate-checked bags usually receive a tag and are returned at the destination, but policies can vary by airport and operational conditions. You can reduce surprise by confirming bag eligibility and tag details with the agent before they close the bag.
International and Partner Flight Considerations
On codeshare or international flights marketed by Frontier but operated by a partner airline, baggage rules may follow the operating carrier’s policy rather than Frontier’s standard fees. Always check the specific itinerary’s baggage conditions during booking and again before departure. If you hold status with a partner airline, confirm whether those bag benefits apply to the Frontier-coded flight.
Size and Compliance Guidelines
Frontier expects cabin bags to fit in the overhead bin or under the seat. While exact measurements can vary, typical cabin bag limits are approximately 22 linear inches (56 cm) combined length, width, and height for a standard bin-fitting bag, and personal items should be smaller and stowable under the seat. A durable soft-side spinner often conforms better to overhead bins than rigid cases. Verify dimensions at home and be prepared to gate-check if the bag does not fit safely.
Special Circumstances and Exceptions
Certain situations, such as documented medical devices or authorized service animals, may be handled differently and are not treated as standard cabin baggage. Specific government or military fare benefits may include bag allowances that differ from commercial fares. Passengers with reduced mobility or other needs should speak with a Frontier agent for individualized guidance and to confirm any exceptions that may apply to their trip.